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7. Summary of Japanese clinical practice guidelines for head and neck cancer - 2022 update edited by the Japan society for head and neck cancer

Author

Homma, Akihiro, Ando, Mizuo, Hanai, Nobuhiro, Harada, Hiroyuki, Honma, Yoshitaka, Kanda, Tomonori, Kano, Satoshi, Kawakita, Daisuke, Kiyota, Naomi, Kizawa, Yoshiyuki, Nakagawa, Masahiro, Ogawa, Takenori, Shinomiya, Hirotaka, Shinozaki, Takeshi, Suzuki, Motoyuki, Tsuji, Tetsuya, Yasuda, Koichi, Zenda, Sadamoto, Kodaira, Takeshi, Kirita, Tadaaki, and Nibu, Ken-ichi

Published
2024
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18. Phase 3 Randomized Trial of Topical Steroid Versus Placebo for Prevention of Radiation Dermatitis in Patients With Head and Neck Cancer Receiving Chemoradiation

Author

Yokota, Tomoya, Zenda, Sadamoto, Ota, Ichiro, Yamazaki, Tomoko, Yamaguchi, Takuhiro, Ogawa, Takenori, Tachibana, Hiroyuki, Toshiyasu, Takashi, Homma, Akihiro, Miyaji, Tempei, Mashiko, Tomoe, Hamauchi, Satoshi, Tominaga, Kuniko, Ishii, Shinobu, Otani, Yui, Orito, Noriko, and Uchitomi, Yosuke

Published
2021
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23. FDG uptake in the cervical muscles after neck dissection: imaging features and postoperative natural course on 18F‑FDG‑PET/CT.

Author

Iritani, Yukako, Kato, Hiroki, Kaneko, Yo, Ishihara, Takuma, Ando, Tomohiro, Kawaguchi, Masaya, Shibata, Hirofumi, Ogawa, Takenori, Noda, Yoshifumi, Hyodo, Fuminori, and Matsuo, Masayuki

Abstract

Purpose: This study aimed to assess the imaging features and postoperative natural course of 18F-fluorodeoxyglucose (FDG) uptake in the cervical muscles after neck dissection. Materials and methods: This study included 83 patients who underwent preoperative and postoperative 18F-FDG-PET/CT and were diagnosed with head and neck malignancy after neck dissection. Postoperative 18F-FDG-PET/CT was performed within 5 years after neck dissection. Preoperative and postoperative FDG uptake of the trapezius, sternocleidomastoid, scalene, pectoralis major, and deltoid muscles was visually assessed. Increased postoperative uptake was visually defined as higher postoperative FDG uptake than the preoperative one in the corresponding muscle. The maximum standardized uptake value (SUVmax) was measured in cases with increased postoperative uptakes. Results: Increased postoperative uptakes were observed in 43 patients (52%). The trapezius (31/83, 37%), sternocleidomastoid (19/83, 23%), and scalene (12/83, 14%) muscles were involved, as opposed to the pectoralis major and deltoid muscles were not. Increased postoperative uptakes were observed on the dissected side in all 43 patients. Significant differences between SUVmax estimated from the mixed-effects model and postoperative months were observed in the trapezius muscle (Coefficient (β) = −0.038; 95% confidence interval (CI): [−0.047, −0.028]; p < 0.001) and sternocleidomastoid muscle (β = −0.015; 95% CI: [−0.029, −0.001]; p = 0.046). Conclusions: Increased postoperative uptakes in the cervical muscles were observed on the dissected side in approximately half of the patients after neck dissection. The SUVmax in the trapezius and sternocleidomastoid muscles decreased after surgery over time. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Breathing–Swallowing discoordination after definitive chemoradiotherapy for head and neck cancers is associated with aspiration pneumonia.

Author

Yoshida, Takuya, Yagi, Naomi, Ogawa, Takenori, Nakanome, Ayako, Ohkoshi, Akira, Katori, Yukio, and Oku, Yoshitaka

Subjects
ASPIRATION pneumonia, HEAD & neck cancer, RADIODERMATITIS, NECK, CHEMORADIOTHERAPY, SQUAMOUS cell carcinoma
Abstract

Purpose: Swallowing dysfunction and the risk of aspiration pneumonia are frequent clinical problems in the treatment of head and neck squamous cell carcinomas (HNSCCs). Breathing–swallowing coordination is an important factor in evaluating the risk of aspiration pneumonia. To investigate breathing–swallowing discoordination after chemoradiotherapy (CRT), we monitored respiration and swallowing activity before and after CRT in patients with HNSCCs. Methods: Non-invasive swallowing monitoring was prospectively performed in 25 patients with HNSCCs treated with CRT and grade 1 or lower radiation-induced dermatitis. Videoendoscopy, videofluoroscopy, Food Intake LEVEL Scale, and patient-reported swallowing difficulties were assessed. Results: Of the 25 patients selected for this study, four dropped out due to radiation-induced dermatitis. The remaining 21 patients were analyzed using a monitoring system before and after CRT. For each of the 21 patients, 405 swallows were analyzed. Swallowing latency and pause duration after the CRT were significantly extended compared to those before the CRT. In the analysis of each swallowing pattern, swallowing immediately followed by inspiration (SW-I pattern), reflecting breathing–swallowing discoordination, was observed more frequently after CRT (p = 0.0001). In 11 patients, the SW-I pattern was observed more frequently compared to that before the CRT (p = 0.00139). One patient developed aspiration pneumonia at 12 and 23 months after the CRT. Conclusion: The results of this preliminary study indicate that breathing–swallowing discoordination tends to increase after CRT and could be involved in aspiration pneumonia. This non-invasive method may be useful for screening swallowing dysfunction and its potential risks. [ABSTRACT FROM AUTHOR]

Published
2024
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32. Summary of Japanese clinical practice guidelines for head and neck cancer - 2022 update edited by the Japan society for head and neck cancer

Author

Homma, Akihiro, primary, Ando, Mizuo, additional, Hanai, Nobuhiro, additional, Harada, Hiroyuki, additional, Honma, Yoshitaka, additional, Kanda, Tomonori, additional, kano, Satoshi, additional, Kawakita, Daisuke, additional, Kiyota, Naomi, additional, Kizawa, Yoshiyuki, additional, Nakagawa, Masahiro, additional, Ogawa, Takenori, additional, Shinomiya, Hirotaka, additional, Shinozaki, Takeshi, additional, Suzuki, Motoyuki, additional, Tsuji, Tetsuya, additional, Yasuda, Koichi, additional, Zenda, Sadamoto, additional, Kodaira, Takeshi, additional, Kirita, Tadaaki, additional, and Nibu, Ken-ichi, additional

Published
2023
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35. Posterior ischemic optic neuropathy following postoperative bleeding and internal jugular vein compression

Author

Kohyama, Keishi, Kato, Hisakazu, Kuroki, Masashi, Okuda, Hiroshi, Shibata, Hirofumi, Ohashi, Toshimitsu, and Ogawa, Takenori

Subjects
internal jugular vein, postoperative bleeding, ischemic optic neuropathy, hematoma, blindness
Abstract

Perioperative blindness, especially posterior ischemic optic neuropathy (PION), is an uncommon but potentially devastating complication. We report a case of a 65-year-old male patient who underwent laryngopharyngectomy, bilateral neck dissection, and free jejunum flap reconstruction, but then experienced PION in his right eye following postoperative bleeding and bilateral internal jugular veins (IJVs) compression. Despite systemic corticosteroid therapy, his visual recovery prognosis was poor. The specific mechanism responsible for PION remains unclear, and no therapy has been shown to improve this condition. As such, prevention of perioperative PION remains the only available strategy. Surgeons should be aware of this rare potential complication and its risk factors and strive to avoid it. As postoperative bleeding and IJV compression are one of important risk factors for PION, avoiding these are critical.

Published
2022

36. Metabolic profiling analysis of head and neck squamous cell carcinoma.

Author

Ohashi, Toshimitsu, Terazawa, Kosuke, Shibata, Hirofumi, Inoue, Norimitsu, and Ogawa, Takenori

Subjects
AMINO acid metabolism, GLUTAMINE metabolism, NUCLEOTIDE analysis, PROTEIN metabolism, ENERGY metabolism, REVERSE transcriptase polymerase chain reaction, TRICARBOXYLIC acids, GLUTATHIONE, CARBOHYDRATE metabolism, METABOLOMICS, HEAD & neck cancer, CASE-control method, METABOLISM, OROPHARYNGEAL cancer, CANCER patients, CAPILLARY electrophoresis, T-test (Statistics), GENE expression profiling, RESEARCH funding, MASS spectrometry, LACTATES, FACTOR analysis, DESCRIPTIVE statistics, PAPILLOMAVIRUS diseases, COLLECTION & preservation of biological specimens, DATA analysis software, SQUAMOUS cell carcinoma, METABOLITES, GLYCOLYSIS, ADENOSYLMETHIONINE, DISEASE complications
Abstract

Objective: Tumor cells can acquire a large amount of energy and structural components by reprogramming energy metabolism; moreover, metabolic profiles slightly differ according to cancer type. This study compared and assessed the metabolic profile of head and neck squamous cell carcinoma (HNSCC) and normal tissues, which were collected from patients without cancer. Subjects and Methods: Overall, 23 patients with HNSCC and 6 patients without cancer were included in the analysis. Metabolomic profiles were analyzed using capillary electrophoresis‐mass spectrometry. Gene expression was evaluated using real‐time reverse transcription‐polymerase chain reaction. Results: Glycolysis, the pentose phosphate pathway, tricarboxylic acid cycle, and glutamine metabolism were upregulated in HNSCC tissues based on gene expression analysis. HNSCC could then have enhanced energy production and structural component. The levels of lactate, succinate, glutathione, 2‐hydroxyglutarate, and S‐adenosylmethionine, considered as oncometabolites, increased and these had accumulated in HNSCC tissues. Conclusions: The level of metabolites and the expression of enzymes differ between HNSCC and normal tissues. Reprogramming metabolism in HNSCC provides an energy source as well as structural components, creating a system that offers rapid proliferation, progression, and is less likely to be eliminated. [ABSTRACT FROM AUTHOR]

Published
2024
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42. MRI findings of sporadic/simple lymphoepithelial cyst of the parotid gland.

Author

Suto, Taketo, Kato, Hiroki, Kawaguchi, Masaya, Kobayashi, Kazuhiro, Ando, Tomohiro, Shibata, Hirofumi, Ogawa, Takenori, Noda, Yoshifumi, Hyodo, Fuminori, and Matsuo, Masayuki

Abstract

Purpose: This study aimed to determine the MRI features of sporadic/simple lymphoepithelial cyst (SLEC) of the parotid gland. Methods: Ten patients (seven men, three women; mean age, 60 years; age range, 38–77 years) with histopathologically and clinically proven SLEC of the parotid gland who underwent MRI before surgical resection were enrolled in this study. No enrolled patient had HIV infection or Sjögren syndrome. MRI findings of SLEC were retrospectively assessed. Results: We confirmed 10 SLECs larger than 10 mm with a mean maximum diameter of 26.6 mm (range, 12–42 mm). Nine patients (90%) had a single cyst, and one (10%) had a large cyst accompanied by small cysts (<10 mm) within the ipsilateral parotid gland. Eight SLECs (80%) were unilocular, and two (20%) were bilocular, with complete septa. Among seven SLECs (70%) with internal septa, five unilocular SLECs (50%) had incomplete septa. Six SLECs (60%) had eccentric cyst wall thickening, and five (50%) were surrounded by small solid nodules that were isointense relative to lymph node. On T1-weighted images, all cyst contents were homogeneously hyperintense relative to cerebrospinal fluid. Conclusion: SLECs of the parotid gland are usually single unilocular lesions. Internal septa, eccentric cyst wall thickening, and small solid nodules surrounding the lesion were often observed. Cyst contents are always homogeneously hyperintense on T1-weighted images. [ABSTRACT FROM AUTHOR]

Published
2023
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43. Questionnaire survey on pharyngolaryngeal sensation evaluation regarding dysphagia in Japan

Author

Kambayashi, Tomonori, primary, Kato, Kengo, additional, Ikeda, Ryoukichi, additional, Suzuki, Jun, additional, Honkura, Yohei, additional, Hirano-Kawamoto, Ai, additional, Ohta, Jun, additional, Kagaya, Hitoshi, additional, Inoue, Makoto, additional, Hyodo, Masamitsu, additional, Omori, Koichi, additional, Suehiro, Atsushi, additional, Okazaki, Tatsuma, additional, Izumi, Shin-Ichi, additional, Koyama, Shigeto, additional, Sasaki, Keiichi, additional, Kumai, Yoshihiko, additional, Nito, Takaharu, additional, Kuriyama, Shinichi, additional, Ogawa, Takenori, additional, and Katori, Yukio, additional

Published
2023
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50. Matched-pair analysis of patients with advanced hypopharyngeal cancer: surgery versus concomitant chemoradiotherapy

Author

Iwae, Shigemichi, Fujii, Masato, Hayashi, Ryuichi, Hasegawa, Yasuhisa, Fujii, Takashi, Okami, Kenji, Homma, Akihiro, Onitsuka, Tetsuro, Kato, Takakuni, Ogawa, Takenori, Terao, Kyoichi, Monden, Nobuya, Otsuki, Naoki, Nishino, Hiroshi, Ota, Ichiro, Fujimoto, Yasushi, Matsuura, Kazuto, Kawabata, Kazuyoshi, Matsui, Hidetoshi, Yonezawa, Koichiro, and Nibu, Ken-ichi

Published
2017
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